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1.
Basics

2.
• Android is a Linux-based operating system designed primarily for
touchscreen mobile devices.
• Initially developed by Android, Inc., which Google backed financially and
later bought in 2005, Android was unveiled in 2007.
• The first Android-powered phone was sold in October 2008.
• Interact with the OS by swiping, tapping, pinching, reverse
pinching, shaking, rotating the device etc.
• Since April 2009, Android versions have been developed under a
codename and released in alphabetical order:
Cupcake, Donut, Eclair, Froyo, Gingerbread, Honeycomb, Ice Cream
Sandwich, and Jelly Bean.
• As of 2013, over 500 million active devices use the Android OS
worldwide.
Source: http://goo.gl/6PXs3
What is Android?